The standard value of atmospheric pressure taken at sea level is All of these 1.013 bar 760 mm of Hg 1013 × 102 N/m2 TRUE ANSWER : ? YOUR ANSWER : ?
When gas is heated at constant pressure, the heat supplied is utilized in Doing some external work Increasing the internal energy of gas Increasing the internal energy of gas and also for doing some external work None of these TRUE ANSWER : ? YOUR ANSWER : ?
Relation between cp and cv is given by (where cp = Specific heat at constant pressure, cv = Specific heat at constant volume, γ = cp/cv, known as adiabatic index, and R = Gas constant) cp - cv = R cv/ cp =R cv = R/ γ-1 Both (B) and (C) TRUE ANSWER : ? YOUR ANSWER : ?
A perpetual motion machine is A thermodynamic machine A non-thermodynamic machine A hypothetical machine whose operation would violate the laws of thermodynamics A hypothetical machine TRUE ANSWER : ? YOUR ANSWER : ?
Water contained in a beaker can be made to boil by passing steam through it Any pressure At a pressure greater than atmospheric pressure At atmospheric pressure Not possible TRUE ANSWER : ? YOUR ANSWER : ?
During throttling process Heat exchange does not take place All of these There is no change of internal energy of steam No work is done by expanding steam TRUE ANSWER : ? YOUR ANSWER : ?
One kg of hydrogen requires 8 kg of oxygen and produces 1 kg of water 7 kg of water 8 kg of water 9 kg of water TRUE ANSWER : ? YOUR ANSWER : ?
The compression ratio is the ratio of Total volume to clearance volume Total volume to swept volume Swept volume to clearance volume Swept volume to total volume TRUE ANSWER : ? YOUR ANSWER : ?
A gas is compressed in a cylinder by a movable piston to a volume one half its original volume. During the process 300 kJ heat left the gas and internal energy remained same. The work done on gas in Nm will be 300 Nm 30 Nm 3000 Nm 300,000 Nm TRUE ANSWER : ? YOUR ANSWER : ?